javascript string to variable

Question

I am receiving a JSON string from an ajax call and would like to convert a value to a predefined variable:

var predefined = \"hello world\";
var foo = {\"msg         


        

Answer 1

var strings = {"predefined":"hello world"};
alert(strings[foo.msg]);

or e.g.

var messages = {};
messages.success_msg = "Your email is send successfully!";

// ...
            msg.text(messages[data.msg]).addClass("email-msg-success");